/* ============================================================
   styles_v2.css — 重陽相調路線手冊 v2
   Design tokens + base, per CONTRACT.md (v1 language extended)
   ============================================================ */
:root{
  --bg:#FAFAFA;
  --card:#FFFFFF;
  --fg:#09090B;
  --muted:#71717A;
  --subtle:#71717A;      /* audit P1: was #A1A1AA, now 4.63:1 */
  --accent:#EC4899;
  --accent-deep:#BE185D; /* audit P1: hero kicker uses this */
  --border:#E4E4E7;
  --wash:#FDF2F8;
  --font-head:'Libre Bodoni','Noto Serif TC',serif;
  --font-body:'Public Sans','PingFang TC','Noto Sans TC',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:72px}   /* P0: anchored sections clear the 56px topnav */
body{font-family:var(--font-body);background:var(--bg);color:var(--fg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--font-head)}
img{display:block;max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
a{-webkit-tap-highlight-color:transparent}
button{-webkit-tap-highlight-color:transparent}
a,button,summary{touch-action:manipulation}

/* ---------- progress bar (fixed, 2px, accent fill) ---------- */
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:200;transition:width .1s linear;pointer-events:none}

/* ---------- topnav ---------- */
.topnav{position:sticky;top:0;z-index:100;background:rgba(250,250,250,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.topnav .wrap{display:flex;align-items:center;gap:22px;height:56px}
.brand{font-weight:800;font-size:15px}
.brand span{color:var(--accent)}
.topnav a.nav{font-size:14px;color:var(--muted);text-decoration:none;padding:6px 2px;border-bottom:2px solid transparent}
.topnav a.nav:hover{color:var(--fg)}
.topnav a.nav[aria-current="true"]{color:var(--accent-deep);border-bottom-color:var(--accent)}

/* ---------- hero ---------- */
.hero{padding:64px 0 40px}
.hero .kicker{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent-deep);font-weight:700;margin-bottom:14px} /* P1 contrast fix */
.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.15;letter-spacing:-.02em;max-width:760px}
.hero h1 em{font-style:italic;color:var(--accent-deep)}
.hero .lede{margin-top:16px;max-width:660px;color:var(--muted);font-size:16.5px}

/* ---------- factbar ---------- */
.factbar{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));margin-top:36px;border:1px solid var(--border);border-radius:12px;background:var(--card);overflow:hidden}
.fact{padding:16px 18px;border-right:1px solid var(--border)}
.fact:last-child{border-right:none}
.fact .fl{font-size:11px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;font-weight:700} /* P1 contrast fix */
.fact .fv{margin-top:6px;font-size:15px;font-weight:600}
.fact .fv small{display:block;font-weight:400;color:var(--muted);font-size:12.5px;margin-top:2px}

/* ---------- route chips (quick nav to the 9 cards) ---------- */
.route-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.route-chips a,.route-chips button{font-size:12.5px;font-weight:600;color:var(--accent-deep);background:var(--wash);border:1px solid #F9A8D4;border-radius:999px;padding:7px 14px;text-decoration:none;cursor:pointer;font-family:var(--font-body);transition:background .15s,color .15s}
.route-chips a:hover,.route-chips button:hover{background:var(--accent-deep);color:#fff;border-color:var(--accent-deep)}

/* ============================================================
   Overview table + city heroes + route cards
   ============================================================ */
.ov{margin:44px 0 8px}
.ov h2{font-size:24px;margin-bottom:14px}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:12px;background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:14px}
th{background:#F4F4F5;text-align:left;font-weight:700;font-size:12.5px;letter-spacing:.06em;color:#52525B;padding:10px 14px;white-space:nowrap}
td{padding:11px 14px;border-top:1px solid var(--border);vertical-align:top}
tbody tr:nth-child(even){background:#FCFCFD}
td a{color:var(--accent-deep);text-decoration:none;border-bottom:1px solid #F9A8D4}
td a:hover{border-bottom-color:var(--accent-deep)}
td[data-label]{white-space:normal}

/* ---------- city sections ---------- */
.city{padding:56px 0 8px}
.city-hero{position:relative;border-radius:16px;overflow:hidden;min-height:280px;display:flex;align-items:flex-end;margin-bottom:34px;background:#18181B}
.city-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.88}
.city-hero .ch-inner{position:relative;z-index:2;width:100%;padding:110px 28px 26px;background:linear-gradient(180deg,rgba(9,9,11,0) 0%,rgba(9,9,11,.72) 78%);color:#fff}
.ch-kicker{font-size:11px;letter-spacing:.2em;text-transform:uppercase;font-weight:700;color:#F9A8D4}
.ch-inner h2{font-size:clamp(28px,4.4vw,40px);letter-spacing:-.02em;margin:6px 0 4px}
.ch-inner h2 small{font-family:var(--font-body);font-weight:400;font-size:15px;color:rgba(255,255,255,.75);letter-spacing:0;margin-left:10px}
.ch-facts{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.92)}
.ch-facts b{color:#fff}
.ch-note{margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.78);max-width:660px}

/* ---------- route cards ---------- */
.route-card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;margin-bottom:30px;box-shadow:0 1px 2px rgba(9,9,11,.04)}
.rc-photo{position:relative;height:230px;background:#F4F4F5}
.rc-photo img{width:100%;height:100%;object-fit:cover}
.rc-chip{position:absolute;right:14px;bottom:14px;background:rgba(9,9,11,.78);color:#fff;font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;backdrop-filter:blur(4px)}
.rc-body{padding:22px 26px 18px}
.route-card h3{font-size:22px;letter-spacing:-.01em;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.r-no{font-family:var(--font-body);font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--accent);text-transform:uppercase;position:relative;padding-left:14px}
.r-no::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:8px;height:2px;background:var(--accent)}
.r-suffix{font-family:var(--font-body);font-size:12.5px;color:#71717A;font-weight:400} /* P1 contrast fix */
.rc-pos{margin-top:8px;font-size:15.5px;color:#3F3F46}
.rc-aud{margin-top:6px;font-size:13.5px;color:var(--muted)}
.rc-aud .lbl{display:inline-block;font-size:11px;font-weight:700;color:var(--accent-deep);border:1px solid #F9A8D4;border-radius:4px;padding:1px 6px;margin-right:8px}

/* ---------- mobile <=720px: overview table -> cards ---------- */
@media(max-width:720px){
  .topnav .wrap{gap:0;justify-content:space-between}
  .topnav a.nav{padding:12px 10px;min-width:44px;text-align:center}
  .hero{padding:40px 0 28px}
  .factbar{grid-template-columns:1fr 1fr}
  .fact{border-right:none;border-bottom:1px solid var(--border)}
  .fact:last-child{border-bottom:none}
  /* overview table falls back to stacked cards via data-label attrs */
  .table-scroll{border:none;background:transparent}
  table{border:none;background:transparent}
  thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
  tbody tr{display:block;background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden}
  td{display:block;border-top:none;padding:7px 14px;border-bottom:1px dashed var(--border)}
  tbody tr td:last-child{border-bottom:none}
  td::before{content:attr(data-label);display:block;font-size:10.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
  .route-chips{gap:6px}
  .route-chips a,.route-chips button{padding:9px 13px;min-height:44px;display:inline-flex;align-items:center}
  .rc-body{padding:18px 16px 14px}
  .city-hero .ch-inner{padding:90px 18px 20px}
  .rc-photo{height:180px}
}

/* ============================================================
   Details sections, timeline, unconfirmed chips, risk bar,
   map slots, leaflet, spot modal, checklist
   ============================================================ */
.sec{margin-top:16px;border-top:1px solid var(--border)}
.sec summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;padding:12px 2px;min-height:44px;font-weight:700;font-size:14px;color:#18181B}
.sec summary::-webkit-details-marker{display:none}
.sec summary::after{content:"";width:8px;height:8px;border-right:1.6px solid var(--subtle);border-bottom:1.6px solid var(--subtle);transform:rotate(45deg);margin-left:auto;transition:transform .18s}
.sec[open] summary::after{transform:rotate(-135deg)}
.sm-label{flex:1}
.sm-toggle{font-size:11px;font-weight:600;color:var(--muted)}
.sec-body{padding:2px 2px 14px;font-size:14.5px;color:#27272A}
.sec-body p{margin:6px 0}
.sec-body ul{margin:6px 0 6px 18px}
.sec-body li{margin:4px 0}
.sec-body table{font-size:13px}
.sec-body th,.sec-body td{padding:7px 10px}

/* ---------- day headers + timeline ---------- */
.day-h{font-family:var(--font-body);font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--accent-deep);margin:14px 0 6px;padding-top:10px;border-top:1px dashed var(--border)}
.day-h:first-child{border-top:none;margin-top:4px}
.tl-item{position:relative;padding-left:16px;margin:5px 0}
.tl-item::before{content:"";position:absolute;left:2px;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.tl-item .spot{font:inherit;color:inherit;background:none;border:none;padding:0;cursor:pointer;border-bottom:1px dashed #F9A8D4}
.tl-item .spot:hover{color:var(--accent-deep);border-bottom-color:var(--accent-deep)}

/* ---------- unconfirmed (amber) ---------- */
.unconf{display:inline-block;background:#FEF3C7;color:#92400E;font-size:11px;font-weight:700;padding:0 6px;border-radius:4px;border:1px solid #FDE68A}
.unconf-chip{display:inline-flex;align-items:center;gap:5px;background:#FEF3C7;color:#92400E;font-size:11.5px;font-weight:700;padding:5px 11px;border-radius:999px;border:1px solid #FDE68A;cursor:pointer;font-family:var(--font-body);min-height:32px;transition:background .15s}
.unconf-chip:hover{background:#FDE68A}

/* ---------- risk bar (amber left border) ---------- */
.risk-bar{margin-top:14px;padding:10px 14px;background:#FFFBEB;border-left:3px solid #F59E0B;border-radius:0 8px 8px 0;font-size:13.5px;color:#92400E}

/* ---------- map slot: collapsed pill -> expands ---------- */
.map-slot{margin-top:14px;border:1px solid var(--border);border-radius:12px;background:#FAFAFA;overflow:hidden}
.map-slot .map-btn{display:inline-flex;align-items:center;gap:7px;min-height:44px;min-width:44px;margin:10px;padding:0 16px;background:var(--wash);border:1px solid #F9A8D4;border-radius:999px;font-size:13px;font-weight:700;color:var(--accent-deep);cursor:pointer;font-family:var(--font-body);transition:background .15s,color .15s}
.map-slot .map-btn:hover{background:var(--accent-deep);color:#fff;border-color:var(--accent-deep)}
.map-slot .map-btn svg{width:16px;height:16px}
.map-slot .map-frame{display:none}
.map-slot.active{padding:0}
.map-slot.active .map-btn{display:none}
.map-slot.active .map-frame{display:block}
.map-slot.active .map-canvas,.map-slot.active .leaflet-container{height:320px;width:100%}
.leaflet-container{border-radius:12px;font-family:var(--font-body);z-index:1}
.leaflet-popup-content-wrapper{border-radius:10px}

/* ---------- spot modal ---------- */
.modal{position:fixed;inset:0;z-index:300}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(9,9,11,.55);backdrop-filter:blur(4px)}
.modal-panel{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:calc(100% - 32px);max-width:560px;max-height:86vh;overflow-y:auto;background:var(--card);border-radius:16px;box-shadow:0 24px 60px rgba(9,9,11,.28);animation:modalUp .26s cubic-bezier(.16,1,.3,1)}
@keyframes modalUp{from{opacity:0;transform:translate(-50%,-44%)}to{opacity:1;transform:translate(-50%,-50%)}}
.modal-close{position:absolute;top:10px;right:10px;width:40px;height:40px;border-radius:50%;border:none;background:rgba(9,9,11,.45);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:2}
.modal-close:hover{background:rgba(9,9,11,.65)}
.modal-close svg{width:18px;height:18px}
.modal-body{padding:0 0 18px}
.m-photo{width:100%;height:210px;object-fit:cover;background:#F4F4F5}
.m-title{font-family:var(--font-head);font-size:22px;letter-spacing:-.01em;padding:16px 22px 0}
.m-meta{padding:4px 22px 0;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:4px 16px}
.m-meta b{color:var(--fg);font-weight:600}
.m-facts{margin:12px 22px 0;border:1px solid var(--border);border-radius:10px;overflow:hidden;font-size:13px}
.m-facts>div{display:flex;padding:8px 12px;border-top:1px solid var(--border)}
.m-facts>div:first-child{border-top:none}
.m-facts .k{width:64px;flex:none;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-top:2px}
.m-facts .v{flex:1;color:#27272A;word-break:break-word}
.m-facts .v a{color:var(--accent-deep);text-decoration:none;border-bottom:1px solid #F9A8D4}
.m-facts .v a:hover{border-bottom-color:var(--accent-deep)}
.m-brief{padding:12px 22px 0;font-size:14px;color:#27272A}
.m-unconf{margin:12px 22px 0;padding:9px 13px;background:#FEF3C7;border:1px solid #FDE68A;border-radius:8px;font-size:12.5px;color:#92400E}
.m-unconf:empty{display:none}
.m-actions{display:flex;flex-wrap:wrap;gap:8px;padding:14px 22px 0}
.m-actions a,.m-actions button{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 15px;border-radius:999px;font-size:13px;font-weight:700;text-decoration:none;cursor:pointer;font-family:var(--font-body);transition:background .15s,color .15s}
.m-actions a.primary,.m-actions button.primary{background:var(--accent-deep);color:#fff;border:1px solid var(--accent-deep)}
.m-actions a.primary:hover,.m-actions button.primary:hover{background:#9D174D}
.m-actions a.ghost,.m-actions button.ghost{background:var(--card);color:var(--accent-deep);border:1px solid #F9A8D4}
.m-actions a.ghost:hover,.m-actions button.ghost:hover{background:var(--wash)}

/* ---------- checklist ---------- */
.checklist{padding:52px 0 10px}
.checklist h2{font-size:24px;margin-bottom:8px}
.checklist .cl-lede{font-size:13.5px;color:var(--muted);max-width:660px;margin-bottom:18px}
.chk-list{list-style:none;border:1px solid var(--border);border-radius:12px;background:var(--card);overflow:hidden}
.chk-list li{border-top:1px solid var(--border)}
.chk-list li:first-child{border-top:none}
.chk-list label{display:flex;align-items:flex-start;gap:10px;padding:10px 16px;cursor:pointer;font-size:13.5px;color:#27272A;transition:background .12s}
.chk-list label:hover{background:var(--wash)}
.chk-list input[type=checkbox]{width:17px;height:17px;margin-top:3px;flex:none;accent-color:var(--accent-deep);cursor:pointer}
.chk-list input[type=checkbox]:checked+span{color:#71717A;text-decoration:line-through}
.chk-city{display:block;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-deep);background:#F4F4F5;padding:7px 16px;border-top:1px solid var(--border)}
.chk-city:first-child{border-top:none}

/* ---------- back to top ---------- */
.back-top{position:fixed;right:20px;bottom:calc(20px + env(safe-area-inset-bottom));width:48px;height:48px;border-radius:50%;border:none;background:var(--accent-deep);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(190,24,93,.35);z-index:150;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:#9D174D}
.back-top svg{width:20px;height:20px}

/* ---------- share + print buttons ---------- */
.share-btn{display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 18px;margin-top:24px;background:var(--accent-deep);color:#fff;border:1px solid var(--accent-deep);border-radius:999px;font-size:13.5px;font-weight:700;cursor:pointer;font-family:var(--font-body);transition:background .15s}
.share-btn:hover{background:#9D174D}
.share-btn svg{width:16px;height:16px}
.print-btn{display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 18px;margin-top:24px;margin-left:10px;background:var(--card);color:var(--muted);border:1px solid var(--border);border-radius:999px;font-size:13.5px;font-weight:700;cursor:pointer;font-family:var(--font-body);transition:border-color .15s,color .15s}
.print-btn:hover{border-color:var(--accent-deep);color:var(--accent-deep)}
.print-btn svg{width:16px;height:16px}

/* ============================================================
   Footer, reveal animation, print, reduced motion
   ============================================================ */
footer{margin-top:60px;border-top:1px solid var(--border);padding:28px 0 48px;color:var(--muted);font-size:12.5px}
footer p{margin:5px 0}
footer b{color:var(--fg)}
footer a{color:var(--accent-deep);text-decoration:none;border-bottom:1px solid #F9A8D4}
footer a:hover{border-bottom-color:var(--accent-deep)}

/* ---------- reveal-on-scroll (guarded: no preference only) ---------- */
@media(prefers-reduced-motion:no-preference){
  .route-card,.city-hero{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
  .route-card.in,.city-hero.in{opacity:1;transform:none}
}

/* ---------- reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .progress{transition:none}
  .back-top{transition:none}
  .modal-panel{animation:none}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
}

/* ---------- print (P0 full block) ---------- */
@media print{
  @page{margin:12mm}
  html{scroll-behavior:auto}
  body{background:#fff;font-size:11.5pt;line-height:1.5}
  [id]{scroll-margin-top:0}
  .progress,.topnav,.back-top,.map-slot,.rc-photo,.city-hero img,.share-btn,.print-btn,.route-chips,.modal{display:none!important}
  .route-card{break-inside:avoid;box-shadow:none;border:1px solid #D4D4D8}
  .city{padding:24px 0 0}
  .city-hero{min-height:0;margin-bottom:18px;border-radius:8px}
  details:not([open])>*:not(summary){display:block!important}
  details{border-top:1px solid #D4D4D8}
  .sec summary{padding:8px 0;font-size:12pt}
  .sec summary::after{display:none}
  .map-btn{display:none!important}
  .unconf-chip{border:1px solid #FDE68A;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .risk-bar{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .factbar{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  a{color:inherit;text-decoration:none;border-bottom:none}
  footer{margin-top:24px;padding-top:16px}
  .chk-list input[type=checkbox]{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

/* v2.1 polish: modal photo aspect + actions visibility (live-browser test fixes) */
.m-photo{width:100%;height:200px;object-fit:cover;object-position:center 40%;border-radius:10px 10px 0 0}
.m-actions{display:flex;flex-wrap:wrap;gap:10px;padding:14px 20px 20px}
.modal-body{padding:0 0 0}
.modal-panel{padding-bottom:2px}
/* keep the last action row fully inside the scrollable panel */
.m-actions a,.m-actions button{margin-bottom:0}

/* ============================================================
   v2.3: map fixes + UX polish（OSM tiles；P1–P7）
   ============================================================ */

/* P5：地圖展開改用 max-height 過場（display:none 唔可以 transition） */
.map-slot .map-frame{display:block;max-height:0;overflow:hidden;transition:max-height .32s cubic-bezier(.16,1,.3,1)}
.map-slot.active .map-frame{max-height:460px}

/* P1：展開後保留 toggle 撳鈕（文案由 JS 轉「收起地圖」）*/
.map-slot.active .map-btn{display:inline-flex;margin:10px 10px 0}

/* P4：圖例（粉紅＝週日、黑＝週一）*/
.map-legend{display:flex;align-items:center;gap:16px;padding:9px 12px 3px;font-size:11.5px;font-weight:700;color:#52525B}
.map-legend .lg{display:inline-flex;align-items:center;gap:6px}
.map-legend .dot{width:10px;height:10px;border-radius:50%;border:2px solid #FFFFFF;box-shadow:0 1px 3px rgba(9,9,11,.35)}
.map-legend .dot.d1{background:#EC4899}
.map-legend .dot.d2{background:#18181B}

/* P2：常駐景點標籤（白色小藥丸、accent 邊）*/
.leaflet-tooltip.spot-tip{background:#FFFFFF;color:#BE185D;border:1px solid #F9A8D4;border-radius:999px;padding:3px 10px;font-size:11.5px;font-weight:700;box-shadow:0 2px 8px rgba(9,9,11,.14);white-space:nowrap}
.leaflet-tooltip.spot-tip.leaflet-tooltip-top::before{border-top-color:#F9A8D4}

/* P3：scrollspy 命中 route-card 時同步 highlight route-chip */
.route-chips a.route-chip[aria-current="true"]{background:var(--accent-deep);color:#FFFFFF;border-color:var(--accent-deep)}